Complement C4 is a topic covered in the Guide to Diagnostic Tests.

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Test/Range/Collection

Complement C4, serum or plasma

15–45 mg/dL

[150–450 mg/dL]

(age-dependent)

SST, lavender, green

$$

Separate serum from cells ASAP or within 2 hrs of collection.

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Citation

* When formatting your citation, note that all book, journal, and database titles should be italicized* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Complement C4 ID - 619107 A1 - Lu,Chuanyi Mark, AU - McPhee,Stephen J, AU - Nicoll,Diana, BT - Guide to Diagnostic Tests UR - https://im.unboundmedicine.com/medicine/view/GDT/619107/all/Complement_C4 PB - McGraw-Hill Education ET - 7 DB - Medicine Central DP - Unbound Medicine ER -